I apologize if this video has already been posted here. I did a rudimentary look through the posts of the past few days and couldn’t see it.
Do not play Breath of the Wild via Switch Emulation, play it via Wii U emulation instead with Cemu.
You get the exact same game but Wii U emulation is easier to run, more well developed and has more options for adjusting framerate and graphics.
You can convert your Switch save to work with the Wii U version.